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extract shutdown to it's own helper

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liquidraver
2026-05-27 12:31:58 +02:00
parent 57b971fc2c
commit 1b47987057
4 changed files with 117 additions and 78 deletions
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zephcore/helpers/ui-button/ui_task.c
+5 -76
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@@ -495,10 +495,7 @@ static void action_deep_sleep(void)
#ifdef CONFIG_POWEROFF
LOG_INF("deep sleep: shutting down...");
/* 1. Stop LED heartbeat and msg indicator */
ui_set_heartbeat_led(false);
/* 2. Play shutdown melody (blocking wait) */
/* Shutdown melody — blocking wait is fine on this terminal path. */
#ifdef CONFIG_ZEPHCORE_UI_BUZZER
buzzer_play(MELODY_SHUTDOWN);
while (buzzer_is_playing()) {
@@ -507,78 +504,10 @@ static void action_deep_sleep(void)
buzzer_stop();
#endif
/* 3. Turn display off */
#ifdef CONFIG_ZEPHCORE_UI_DISPLAY
mc_display_off();
#endif
/* 4. Drive power-hungry enable pins LOW.
*
* nRF52840 GPIO output latches persist across System OFF and reset.
* If GPS_EN is HIGH, the GPS module stays powered during "sleep."
* Drive known power-enable GPIOs LOW via Zephyr's safe GPIO API.
*
* DO NOT touch BLE (bt_conn_disconnect / bt_le_adv_stop) — that
* corrupts BLE controller state and prevents clean reboot.
* DO NOT blank all GPIOs — that bricked the device previously. */
gps_power_off_for_shutdown();
mesh_disable_power_regulators();
/* 5. Hold the LoRa radio in hardware reset.
*
* sys_poweroff() bypasses device PM — the SX126x hardware duty cycle
* would otherwise keep cycling autonomously (drawing mA) while the
* SoC is in System OFF (~1µA). Drive RESET low; nRF52 GPIO output
* latches persist across System OFF so the chip stays in reset (0µA).
* On wakeup, the driver's sx126x_init() re-asserts then releases reset. */
#if DT_NODE_EXISTS(DT_ALIAS(lora0)) && DT_NODE_HAS_PROP(DT_ALIAS(lora0), reset_gpios)
{
static const struct gpio_dt_spec lora_reset =
GPIO_DT_SPEC_GET(DT_ALIAS(lora0), reset_gpios);
gpio_pin_configure_dt(&lora_reset, GPIO_OUTPUT_ACTIVE);
}
#endif
/* 6. Configure GPIO SENSE for button wakeup, then enter System OFF.
*
* The nRF GPIO driver does not implement GPIO_INT_WAKEUP, so the
* wakeup-source DTS property has no effect on nRF52. We must set
* SENSE bits directly via the nRF HAL. sys_poweroff() goes straight
* to nrf_power_system_off() with no device PM suspend, so these bits
* persist into System OFF and trigger a reset on next button press.
*
* Wait for button release first: if we enter System OFF while the
* button is still held (long-press shutdown), DETECT is already
* asserted and the chip cannot enter System OFF cleanly. */
#if defined(CONFIG_SOC_FAMILY_NORDIC_NRF) && DT_NODE_EXISTS(DT_ALIAS(sw0))
{
#define _SW0_NODE DT_ALIAS(sw0)
#define _SW0_PORT DT_PROP(DT_GPIO_CTLR(_SW0_NODE, gpios), port)
#define _SW0_PIN DT_GPIO_PIN(_SW0_NODE, gpios)
#define _SW0_FLAGS DT_GPIO_FLAGS(_SW0_NODE, gpios)
static const struct gpio_dt_spec sw0 =
GPIO_DT_SPEC_GET(DT_ALIAS(sw0), gpios);
gpio_pin_configure_dt(&sw0, GPIO_INPUT);
int64_t deadline = k_uptime_get() + 5000;
while (gpio_pin_get_dt(&sw0) && k_uptime_get() < deadline) {
k_sleep(K_MSEC(10));
}
nrf_gpio_cfg_sense_input(
NRF_GPIO_PIN_MAP(_SW0_PORT, _SW0_PIN),
(_SW0_FLAGS & GPIO_PULL_UP) ? NRF_GPIO_PIN_PULLUP :
(_SW0_FLAGS & GPIO_PULL_DOWN) ? NRF_GPIO_PIN_PULLDOWN :
NRF_GPIO_PIN_NOPULL,
(_SW0_FLAGS & GPIO_ACTIVE_LOW) ? NRF_GPIO_PIN_SENSE_LOW
: NRF_GPIO_PIN_SENSE_HIGH);
#undef _SW0_NODE
#undef _SW0_PORT
#undef _SW0_PIN
#undef _SW0_FLAGS
}
#endif /* CONFIG_SOC_FAMILY_NORDIC_NRF && sw0 */
/* Shared peripheral teardown + SENSE config for sw0 wake.
* Single source of truth in helpers/ui/ui_common.c so the joystick
* UI variant ends up in the same low-power state. */
ui_prepare_for_system_off();
LOG_INF("deep sleep: entering System OFF");
sys_poweroff();